Results 1 to 10 of about 2,838 (164)

Sprinkling or irrigation ?

open access: yesNetherlands Journal of Agricultural Science, 1962
The economics of sprinkler irrigation and of surface irrigation are theoretically analysed for areas where water is in short supply. It is postulated that where crop yields and general expenses per unit area are equal for the 2 systems, sprinkler irrigation will be the more profitable because a greater area of land can be irrigated with the same ...
openaire   +2 more sources

A comparison of turbulent CFD with Gaussian dispersion models on a methane emission test site

open access: yesAtmospheric Environment: X
This article investigates the influence of structures on the atmospheric transport of methane in an outdoor industrial environment, and provides a comparison in the predictive capability of Gaussian dispersion models against a turbulent computational ...
Ryker Fish   +3 more
doaj   +1 more source

Performance Variation of Aqua Ammonia Falling Film Absorption Outside Vertical Tube Based on Transversally Grooved Tube

open access: yesZhileng xuebao, 2013
A series of experiments are carried out to find approach which can enhance absorption efficiency for transversally grooved tube (TGT) with different sizes, and to choose an optimal tube type.
Chen Xiaozhuan   +4 more
doaj  

Paths, Cycles and Sprinkling in Random Hypergraphs

open access: yesThe Electronic Journal of Combinatorics
We prove a lower bound on the length of the longest $j$-tight cycle in a $k$-uniform binomial random hypergraph for any $2 \le j \le k-1$. We first prove the existence of a $j$-tight path of the required length. The standard "sprinkling" argument is not enough to show that this path can be closed to a $j$-tight cycle - we therefore show that the path ...
openaire   +3 more sources

Christian Missions and Slavery

open access: yesAfrican Theological Journal for Church and Society
While considerable research is available on the transatlantic slave trade and the cruelty suffered by African slaves in the Americas, less attention is given to the practices of slavery and forced labour in Africa.
Jaap van Slageren
doaj  

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